PST065, PST10 & PST155 Incremental Potentiometers 
Cover 6 mm to 15 mm Position Feedback

Three new series share a 1 kΩ to 5 MΩ resistance range and linear taper across 6 mm, 10 mm and 15 mm package sizes.

Bourns released three incremental potentiometer series in September for rotary position feedback in industrial and commercial equipment. The Bourns^® PST065 Series (6 mm), PST10 Series (10 mm) and PST155 Series (15 mm) share a standard resistance range of 1 kΩ to 5 MΩ, a linear (B) taper, a contact rating of 10 mA at 5 VDC and an operating range of −10 °C to 
+70 °C. All three are available in horizontal and vertical mounting configurations and are RoHS compliant*.

The sizes differ in power and voltage ratings, which scale with the package:

CRH2512, CSS4C-1216 & SC2 Series 
Add Current Sensing Options

Bourns added three current sensing resistor options in September, covering milliohm shunts through precision wirewound designs.

The Bourns^® CRH2512 Series High-Power Metal Alloy Resistor is rated up to 5 W in a 2512 surface mount package, with resistance values from 0.5 mΩ to 30 mΩ. TCR is ±75 ppm/°C at 
0.5 mΩ and ±50 ppm/°C from 1 mΩ to 30 mΩ, with tolerance options of ±1 %, ±2 % and ±5 % and an operating range of −55 °C to +170 °C. Applications include power supplies, industrial controllers, digital meters and battery management systems.

Bourns also extended the CSS4C-1216 Series automotive grade current sense resistors with new resistance values and a ±3 % tolerance option. The series uses an electron-beam-welded metal strip with a four-terminal Kelvin configuration, inductance below 2 nH, power ratings up to 
5 W, and resistance values from 0.2 mΩ to 3 mΩ. TCR is as low as ±50 ppm/°C across an operating range of −65 °C to +170 °C. The CSS4C-1216 Series is AEC-Q200 compliant.

The Bourns^® SC2 Series is a four-terminal surface mount wirewound resistor for precision current sensing, with resistance values from 0.005 Ω to 1 kΩ, TCR to ±5 ppm/°C, current up to 
25 A, and an operating range of −55 °C to +275 °C. Minimum tolerance is ±0.1 % from 0.005 Ω to 1 Ω and ±0.05 % above 1 Ω, with tighter tolerances available on request. Non-inductive winding variants are available for high-frequency designs. Applications include battery formation and test equipment, DC fast chargers, pulse power systems, and power analyzer shunts.

The CRH2512 and CSS4C-1216 Series are RoHS compliant* and halogen-free**; the SC2 Series is RoHS compliant*. To compare the full current sense line, see the Current Sense Resistors Component Selection Guide.

Read the press releases: CRH2512 Series · CSS4C-1216 Series · SC2 Series →


*RoHS Directive 2015/863, Mar 31, 2015 and Annex. ** Bourns considers a product to be “halogen free” if (a) the Bromine (Br) content is 900 ppm or less; (b) the Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less. If

you have any questions or need additional information, please feel free to contact Customer Service/Inside Sales.

CRT-TN Series TaN Thin Film Chip Resistors 
Resist Sulfur and Humidity

Bourns released the CRT-TN Series, thin film precision chip resistors built on tantalum nitride (TaN) for long-term stability in humid and sulfur-rich environments. The sulfur-resistant design is tested to ASTM B809-95. The series offers tolerances as tight as ±0.05 % and temperature coefficients as low as ±10 ppm/°C in 0402, 0603, 0805, and 1206 packages.



Power ratings range from 0.063 W to 0.5 W at 85 °C, maximum working voltages range from 
50 V to 200 V, and the operating temperature range is −55 °C to +155 °C. Applications include industrial equipment, precision circuits, navigation equipment, telecommunications, and precision test devices. The CRT-TN Series is RoHS compliant*.

Read the full press release for the CRT-TN Series →

*RoHS Directive 2015/863, Mar 31, 2015 and Annex. 

Automotive Grade BMS Signal 
Transformers & UT-A Series Power Resistors

Bourns added two AEC-Q200 compliant, automotive grade signal transformers for battery management systems (BMS) in hybrid and electric powertrains and energy storage battery packs. Both are single-channel, reinforced insulation designs in a 31.5 × 12.5 × 9.5 mm package, with 150 µH to 450 µH inductance and an operating range of −40 °C to +125 °C.



• The Bourns^® Model SM91581AL is rated for 1,800 VDC working voltage (reinforced insulation) and 8,400 VDC Hi-Pot, with creepage and clearance distances above 23.7 mm.
• The Bourns^® Model SM91595AL is rated for 1,500 VDC working voltage and 6,400 VDC 
  Hi-Pot, with integrated common mode chokes for noise rejection; it was developed for use with NXP MC33771C series and Analog Devices LTC6804/681X series battery monitors.

The Bourns^® UT-A Series Power Resistors are silicone-coated wirewound resistors for high-temperature automotive applications such as braking assemblies and power conversion modules. The automotive grade series covers 10 Ω to 4.5 kΩ, 1 W to 10 W, tolerances as low as ±1 %, a TCR of ±30 ppm/°C and an operating range of −55 °C to +150 °C. The UT-A Series is AEC-Q200 compliant. All three products are RoHS compliant*.

Read more: SM91581AL · SM91595AL · UT-A Series press release · UT-A Series New Product Brief →

*RoHS Directive 2015/863, Mar 31, 2015 and Annex. 

UALH Series Aluminum Housed 
Wirewound Resistors Reach 100 W

Bourns released the UALH Series, high power wirewound resistors with the winding protected by a silicone molding compound and enclosed in an aluminum shell for heat dissipation. The series is rated for 100 W with a heat sink and 30 W without, at 25 °C.

Resistance values run from 0.5 Ω to 22 kΩ at ±5 % tolerance, with a TCR of ±350 ppm/°C, maximum working voltage of 1,483 V, dielectric withstanding voltage of 4,500 V, and an operating range of −55 °C to +275 °C. Applications include industrial motor controls, industrial power supplies, and high-power machinery. The UALH Series is RoHS compliant* and halogen-free**.

Read the full press release for the UALH Series →

*RoHS Directive 2015/863, Mar 31, 2015 and Annex. ** Bourns considers a product to be “halogen free” if (a) the Bromine (Br) content is 900 ppm or less; (b) the Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less. If

you have any questions or need additional information, please feel free to contact Customer Service/Inside Sales.

Protecting & Measuring Rack-Level 
Power in AI Data Centers

In AI data centers, a single rack can draw 20 kW or more, and the rack power distribution unit (rPDU) now meters energy at each outlet, absorbs transients, and reports to the facility network. A new Bourns white paper and application brief cover the three design areas that most affect rPDU reliability: overvoltage protection, overcurrent protection for supervisory electronics, and current sensing for outlet-level power usage effectiveness (PUE) reporting.

Layered surge protection. Primary surge protective devices (SPDs) at the service entrance absorb lightning and grid events, secondary SPDs at distribution panels clamp the residual energy, and the rPDU handles what reaches the rack plus transients from GPU load steps, server inrush, and adjacent equipment. Bourns^® 1220, 1250 and 1270 Series SPDs cover AC MCOV ratings from 150 V to 750 V and 8/20 µs surge current ratings from 22 kA to 100 kA, depending on configuration.


Rack-level overvoltage. Three complementary technologies answer different design questions:

• Bourns^® PV and ZVHT Series Metal Oxide Varistors for surge absorption at the rPDU input; selected PV Series models are UL 1449 recognized.
• Bourns^® PTVS2-xxxC-H Series Power TVS Diodes for tighter clamping on sensitive DC rails and supervisory electronics.
• Bourns^® IsoMOV^® Hybrid Protectors, which pair an MOV with a gas discharge tube to reduce standby leakage where long service intervals matter.



Current sensing and overcurrent. Category 3 PUE reporting requires current measurement at each outlet. The Bourns^® CSI2H-2512 Series Shunt offers 0.3 mΩ to 3.5 mΩ, tolerance options of ±1 %, ±2 %, and ±5 %, a TCR of ±50 ppm/°C, and low thermal EMF. For the Ethernet and USB ports used for remote supervision, Bourns^® Multifuse^® MF-NSMF Series PPTC Resettable Fuses open under fault and reset once the fault clears, so an outlet stays online without a site visit.

Read the White Paper · Application Brief · rPDU Brochure →

The Bourns team in Hall 3, Booth K51, at electronica India 2026 in Bengaluru.

electronica India 2026: 
Automotive Applications Lead Booth Conversations

Thank you to everyone who visited Bourns at electronica India 2026, held September 16–18 at the Bangalore International Exhibition Centre (BIEC) in Bengaluru. Automotive designs drove most conversations at the booth, especially electric vehicles, e-bikes, sensors, and power systems. Visitors also asked about industrial, consumer electronics, and AI applications.

The booth featured Bourns^® SRP Series High-Current Shielded Power Inductors, a live load dump protection demonstration with Bourns^® SM8S-Q Automotive TVS Diodes, the Bourns^® Copper Electrode MOV Series, and Rakon precision timing products for aerospace, defense, and advanced communications.

Engineers in India who want to continue the conversation can work with the Bourns India Design Center, which opened in November 2025 to give developers local access to Bourns technologies.

Learn about the Bourns India Design Center →

Meet Bourns in Germany This Fall

Bourns will exhibit at three events in Germany in October and November. Bourns technical experts will be available at each to discuss product specifications and application requirements.